Round|Lab Grown|IGI

8.51ct H VS2 Round Lab Grown Diamond

ID • H/VS2 • IGI LG610311857

Shape and cutting style on the report: Round brilliant

Certificate IGI LG610311857

Diamond specifications and retailer prices

From £1,187 GBP

$1,590 USD

As of October 31, 2026

Save £3,179 GBP (73%) vs most expensive(unlock to see where)

15 retailers carry this diamond

Most expensive: £4,366 GBP at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 8.51ct lab-grown round diamond

This 8.51ct lab-grown round sits in the over five carat band, graded H colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG610311857 or 610311857. Listed at 15 retailers as of October 29, 2026, with prices from £1,187 to £4,366, a £3,179 spread on the same certified stone. Brilliant Earth lists it at £4,366. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

8.51

Carat

Colour

VS2

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle33.9°

Pavilion angle40.6°

OriginLab Grown

Grading LabIGI

CertificateIGI LG610311857

Dimensions13.24 × 13.21 × 7.95 mm

L/W Ratio1.00

Girdle conditionFaceted

Culet sizePointed

Cert comments

HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG610311857

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

Unlock full score analysis

See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31

Current: £4,366 GBP|Low: £864 GBP|High: £4,500 GBP|Avg: £2,218 GBP|-3.0%

Brilliant Earth

Retailer 2

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Retailer 17

October 31, 2026

Retailer 5£864 GBP

Retailer 4£940 GBP

Retailer 7£989 GBP

Retailer 17£1,058 GBP

Retailer 10£1,187 GBP

Retailer 13£1,461 GBP

Retailer 12£1,646 GBP

Retailer 16£1,678 GBP

Retailer 2£1,746 GBP

Retailer 6£1,879 GBP

Retailer 14£2,028 GBP

Retailer 15£2,943 GBP

Retailer 11£3,419 GBP

Retailer 8£3,458 GBP

Retailer 9£3,538 GBP

Retailer 3£3,711 GBP

Brilliant Earth£4,366 GBP

28 data points across 17 retailers

15 retailers£1,187 GBP to £4,366 GBP

Retailer 1

£864 GBP

$1,158 USD

Price last confirmed 38 days ago

Retailer 2

£940 GBP

$1,260 USD

View

Price last confirmed 38 days ago

Retailer 3

£989 GBP

$1,325 USD

View

Price last confirmed 34 days ago

Retailer 4

£1,058 GBP

$1,418 USD

View

Price last confirmed 21 days ago

Retailer 5

£1,187 GBP

$1,590 USD

View

Retailer 6

£1,461 GBP

$1,958 USD

View

Retailer 7

£1,646 GBP

View

Price last confirmed 14 days ago

B+

Retailer 8

£1,678 GBP

$2,248 USD

View

B+

Retailer 9

£1,746 GBP

€2,228 EUR

View

Retailer 10

£1,879 GBP

$2,518 USD

View

Price last confirmed 34 days ago

B+

Retailer 11

£2,028 GBP

$2,717 USD

View

Retailer 12

£2,943 GBP

$3,943 USD

View

Retailer 13

£3,419 GBP

View

Retailer 14

£3,711 GBP

$4,972 USD

View

Price last confirmed 13 days ago

Most Expensive

Brilliant Earth

8644958A · Oct 29

£4,366 GBP

$5,850 USD

View

14 more retailers have this diamond

Prices start from £1,187 GBPSave up to £3,179 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

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8.51ct Round

£1,187 GBP